UPDATE: Pluck it from the rumour file, he's in! Variety reports that Grillo has won the role of Crossbones. He joins a cast that includes Chris Evans, Sebastian Stan, Anthony Mackie, Scarlett Johansson (at least according to Variety), Cobie Smulders and Samuel L Jackson.

With Joe and Anthony Russo set to start directing the movie in March, casting is naturally in full swing. Grillo certainly seems to fit the physical type for Crossbones, who is often seen in the comics as a henchman of Red Skull and has appeared in Cap’s titles in stories alongside Falcon (who will be portrayed in the film by Anthony Mackie) and Winter Soldier (possibly Sebastian Stan, since Bucky Barnes becomes the Soldier).

Confirmed details are scarce from Marvel themselves, though apparently the film will feature two powerful male villains. Josh Holloway and Game Of Thrones’ Nikolaj Coster-Waldau have also been mentioned as possible candidates, so we’ll have to wait and see who – if any of them – gets chosen.

Captain America: The Winter Soldier is set for release on April 4, 2014.

Is he even that well known in America?
I just don't see the point in a what C lister at most?
Who doesn't even fit the characters build you might as well have plucked any wrestler going to play the role I mean it's not as if Crossbones is gonna be anymore than probably Red Skulls main henchman anyway. More

At least Jonah Hex had Megan Fox! Thought Cap 1 was pretty good, expected shite but was pleasantly surprised. If I still have my Cineworld card (influx of 3-D only movies is fuckin killing that though) I'll give the sequel a whirl! More

Well Crossbones will prob be a sub villain with 2 major villains still to be cast, iam betting not only that THE WINTER SOLDIER who is obviously in the film, but HYDRA will play a massive role which would mean Strucker and Zemo will be around, plus modern HYDRA were responsible for the creation of a certain SPIDER WOMAN More